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An Icosidodecahedral Supramolecule Based on Pentaphosphaferrocene: From a Disordered Average Structure to Individual Isomers
Author(s) -
Heindl Claudia,
Peresypkina Eugenia,
Virovets Alexander V.,
Bushmarinov Ivan S.,
Medvedev Michael G.,
Krämer Barbara,
Dittrich Birger,
Scheer Manfred
Publication year - 2017
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.201706756
Subject(s) - denticity , chemistry , crystallography , halide , fullerene , enantiomer , computational chemistry , crystal structure , stereochemistry , inorganic chemistry , organic chemistry
Pentaphosphaferrocenes [Cp R Fe(η 5 ‐P 5 )] ( 1 ) and Cu I halides are excellent building blocks for the formation of discrete supramolecules. Herein, we demonstrate the potential of Cu(CF 3 SO 3 ) for the construction of the novel 2D polymer [{Cp*Fe(μ 4 ,η 5:1:1:1 ‐P 5 )}{Cu(CF 3 SO 3 )}] n ( 2 ) and the unprecedented nanosphere (CH 2 Cl 2 ) 1.4 @[{Cp Bn Fe(η 5 ‐P 5 )} 12 {Cu(CF 3 SO 3 )} 19.6 ] ( 3 ). The supramolecule 3 has a unique scaffold beyond the fullerene topology, with 20 copper atoms statistically distributed over the 30 vertices of an icosidodecahedron. Combinatorics was used to interpret the average disordered structure of the supramolecules. In this case, only two pairs of enantiomers with D 5 and D 2 symmetry are possible for bidentate bridging coordination of the triflate ligands. DFT calculations showed that differences in the energies of the isomers are negligible. The benzyl ligands enhance the solubility of 3 , enabling NMR‐spectroscopic and mass‐spectrometric investigations.